Niina Nijikawa is a high school freshman who loves to sing. Contrary to her love, she is not good at singing in front of the audience, therefore her stage is usually on the school rooftop. However, she reached a great turning point. Niina can sing in freedom, her classmate, Shikiri invited Niina to go Karaoke with her. In the room smaller than the rooftop stage, what is waiting for Niina.
Source: Comic Days